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linux/drivers/gpu/drm/nouveau/nouveau_connector.c
Ben Skeggs 6cc6e08d45 drm/nouveau/kms: add support for GB20x 
Adds basic support for the new display classes available on GB20x GPUs.

Most of the changes here deal with HW method moves, with the only other
change of note being tweaks to skip allocation of CTXDMA objects, which
aren't required on Blackwell display.

Signed-off-by: Ben Skeggs <bskeggs@nvidia.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Timur Tabi <ttabi@nvidia.com>
Tested-by: Timur Tabi <ttabi@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2025-05-19 07:14:45 +10:00

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/*
* Copyright (C) 2008 Maarten Maathuis.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <acpi/button.h>
#include <linux/pm_runtime.h>
#include <linux/vga_switcheroo.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_edid.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_atomic.h>
#include "nouveau_reg.h"
#include "nouveau_drv.h"
#include "dispnv04/hw.h"
#include "dispnv50/disp.h"
#include "nouveau_acpi.h"
#include "nouveau_display.h"
#include "nouveau_connector.h"
#include "nouveau_encoder.h"
#include "nouveau_crtc.h"
#include <nvif/class.h>
#include <nvif/if0011.h>
struct drm_display_mode *
nouveau_conn_native_mode(struct drm_connector *connector)
{
const struct drm_connector_helper_funcs *helper = connector->helper_private;
struct nouveau_drm *drm = nouveau_drm(connector->dev);
struct drm_device *dev = connector->dev;
struct drm_display_mode *mode, *largest = NULL;
int high_w = 0, high_h = 0, high_v = 0;
list_for_each_entry(mode, &connector->probed_modes, head) {
if (helper->mode_valid(connector, mode) != MODE_OK ||
(mode->flags & DRM_MODE_FLAG_INTERLACE))
continue;
/* Use preferred mode if there is one.. */
if (mode->type & DRM_MODE_TYPE_PREFERRED) {
NV_DEBUG(drm, "native mode from preferred\n");
return drm_mode_duplicate(dev, mode);
}
/* Otherwise, take the resolution with the largest width, then
* height, then vertical refresh
*/
if (mode->hdisplay < high_w)
continue;
if (mode->hdisplay == high_w && mode->vdisplay < high_h)
continue;
if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
drm_mode_vrefresh(mode) < high_v)
continue;
high_w = mode->hdisplay;
high_h = mode->vdisplay;
high_v = drm_mode_vrefresh(mode);
largest = mode;
}
NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
high_w, high_h, high_v);
return largest ? drm_mode_duplicate(dev, largest) : NULL;
}
int
nouveau_conn_atomic_get_property(struct drm_connector *connector,
const struct drm_connector_state *state,
struct drm_property *property, u64 *val)
{
struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
struct nouveau_display *disp = nouveau_display(connector->dev);
struct drm_device *dev = connector->dev;
if (property == dev->mode_config.scaling_mode_property)
*val = asyc->scaler.mode;
else if (property == disp->underscan_property)
*val = asyc->scaler.underscan.mode;
else if (property == disp->underscan_hborder_property)
*val = asyc->scaler.underscan.hborder;
else if (property == disp->underscan_vborder_property)
*val = asyc->scaler.underscan.vborder;
else if (property == disp->dithering_mode)
*val = asyc->dither.mode;
else if (property == disp->dithering_depth)
*val = asyc->dither.depth;
else if (property == disp->vibrant_hue_property)
*val = asyc->procamp.vibrant_hue;
else if (property == disp->color_vibrance_property)
*val = asyc->procamp.color_vibrance;
else
return -EINVAL;
return 0;
}
int
nouveau_conn_atomic_set_property(struct drm_connector *connector,
struct drm_connector_state *state,
struct drm_property *property, u64 val)
{
struct drm_device *dev = connector->dev;
struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
struct nouveau_display *disp = nouveau_display(dev);
if (property == dev->mode_config.scaling_mode_property) {
switch (val) {
case DRM_MODE_SCALE_NONE:
/* We allow 'None' for EDID modes, even on a fixed
* panel (some exist with support for lower refresh
* rates, which people might want to use for power-
* saving purposes).
*
* Non-EDID modes will force the use of GPU scaling
* to the native mode regardless of this setting.
*/
switch (connector->connector_type) {
case DRM_MODE_CONNECTOR_LVDS:
case DRM_MODE_CONNECTOR_eDP:
/* ... except prior to G80, where the code
* doesn't support such things.
*/
if (disp->disp.object.oclass < NV50_DISP)
return -EINVAL;
break;
default:
break;
}
break;
case DRM_MODE_SCALE_FULLSCREEN:
case DRM_MODE_SCALE_CENTER:
case DRM_MODE_SCALE_ASPECT:
break;
default:
return -EINVAL;
}
if (asyc->scaler.mode != val) {
asyc->scaler.mode = val;
asyc->set.scaler = true;
}
} else
if (property == disp->underscan_property) {
if (asyc->scaler.underscan.mode != val) {
asyc->scaler.underscan.mode = val;
asyc->set.scaler = true;
}
} else
if (property == disp->underscan_hborder_property) {
if (asyc->scaler.underscan.hborder != val) {
asyc->scaler.underscan.hborder = val;
asyc->set.scaler = true;
}
} else
if (property == disp->underscan_vborder_property) {
if (asyc->scaler.underscan.vborder != val) {
asyc->scaler.underscan.vborder = val;
asyc->set.scaler = true;
}
} else
if (property == disp->dithering_mode) {
if (asyc->dither.mode != val) {
asyc->dither.mode = val;
asyc->set.dither = true;
}
} else
if (property == disp->dithering_depth) {
if (asyc->dither.mode != val) {
asyc->dither.depth = val;
asyc->set.dither = true;
}
} else
if (property == disp->vibrant_hue_property) {
if (asyc->procamp.vibrant_hue != val) {
asyc->procamp.vibrant_hue = val;
asyc->set.procamp = true;
}
} else
if (property == disp->color_vibrance_property) {
if (asyc->procamp.color_vibrance != val) {
asyc->procamp.color_vibrance = val;
asyc->set.procamp = true;
}
} else {
return -EINVAL;
}
return 0;
}
void
nouveau_conn_atomic_destroy_state(struct drm_connector *connector,
struct drm_connector_state *state)
{
struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
__drm_atomic_helper_connector_destroy_state(&asyc->state);
kfree(asyc);
}
struct drm_connector_state *
nouveau_conn_atomic_duplicate_state(struct drm_connector *connector)
{
struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
struct nouveau_conn_atom *asyc;
if (!(asyc = kmalloc(sizeof(*asyc), GFP_KERNEL)))
return NULL;
__drm_atomic_helper_connector_duplicate_state(connector, &asyc->state);
asyc->dither = armc->dither;
asyc->scaler = armc->scaler;
asyc->procamp = armc->procamp;
asyc->set.mask = 0;
return &asyc->state;
}
void
nouveau_conn_reset(struct drm_connector *connector)
{
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_conn_atom *asyc;
if (drm_drv_uses_atomic_modeset(connector->dev)) {
if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL))))
return;
if (connector->state)
nouveau_conn_atomic_destroy_state(connector,
connector->state);
__drm_atomic_helper_connector_reset(connector, &asyc->state);
} else {
asyc = &nv_connector->properties_state;
}
asyc->dither.mode = DITHERING_MODE_AUTO;
asyc->dither.depth = DITHERING_DEPTH_AUTO;
asyc->scaler.mode = DRM_MODE_SCALE_NONE;
asyc->scaler.underscan.mode = UNDERSCAN_OFF;
asyc->procamp.color_vibrance = 150;
asyc->procamp.vibrant_hue = 90;
if (nouveau_display(connector->dev)->disp.object.oclass < NV50_DISP) {
switch (connector->connector_type) {
case DRM_MODE_CONNECTOR_LVDS:
/* See note in nouveau_conn_atomic_set_property(). */
asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN;
break;
default:
break;
}
}
}
void
nouveau_conn_attach_properties(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
struct nouveau_display *disp = nouveau_display(dev);
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_conn_atom *armc;
if (drm_drv_uses_atomic_modeset(connector->dev))
armc = nouveau_conn_atom(connector->state);
else
armc = &nv_connector->properties_state;
/* Init DVI-I specific properties. */
if (connector->connector_type == DRM_MODE_CONNECTOR_DVII)
drm_object_attach_property(&connector->base, dev->mode_config.
dvi_i_subconnector_property, 0);
/* Add overscan compensation options to digital outputs. */
if (disp->underscan_property &&
(connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) {
drm_object_attach_property(&connector->base,
disp->underscan_property,
UNDERSCAN_OFF);
drm_object_attach_property(&connector->base,
disp->underscan_hborder_property, 0);
drm_object_attach_property(&connector->base,
disp->underscan_vborder_property, 0);
}
/* Add hue and saturation options. */
if (disp->vibrant_hue_property)
drm_object_attach_property(&connector->base,
disp->vibrant_hue_property,
armc->procamp.vibrant_hue);
if (disp->color_vibrance_property)
drm_object_attach_property(&connector->base,
disp->color_vibrance_property,
armc->procamp.color_vibrance);
/* Scaling mode property. */
switch (connector->connector_type) {
case DRM_MODE_CONNECTOR_TV:
break;
case DRM_MODE_CONNECTOR_VGA:
if (disp->disp.object.oclass < NV50_DISP)
break; /* Can only scale on DFPs. */
fallthrough;
default:
drm_object_attach_property(&connector->base, dev->mode_config.
scaling_mode_property,
armc->scaler.mode);
break;
}
/* Dithering properties. */
switch (connector->connector_type) {
case DRM_MODE_CONNECTOR_TV:
case DRM_MODE_CONNECTOR_VGA:
break;
default:
if (disp->dithering_mode) {
drm_object_attach_property(&connector->base,
disp->dithering_mode,
armc->dither.mode);
}
if (disp->dithering_depth) {
drm_object_attach_property(&connector->base,
disp->dithering_depth,
armc->dither.depth);
}
break;
}
}
MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
int nouveau_tv_disable = 0;
module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
int nouveau_ignorelid = 0;
module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
int nouveau_duallink = 1;
module_param_named(duallink, nouveau_duallink, int, 0400);
MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
int nouveau_hdmimhz = 0;
module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400);
struct nouveau_encoder *
find_encoder(struct drm_connector *connector, int type)
{
struct nouveau_encoder *nv_encoder;
struct drm_encoder *enc;
drm_connector_for_each_possible_encoder(connector, enc) {
nv_encoder = nouveau_encoder(enc);
if (type == DCB_OUTPUT_ANY ||
(nv_encoder->dcb && nv_encoder->dcb->type == type))
return nv_encoder;
}
return NULL;
}
static void
nouveau_connector_destroy(struct drm_connector *connector)
{
struct nouveau_connector *nv_connector = nouveau_connector(connector);
nvif_event_dtor(&nv_connector->irq);
nvif_event_dtor(&nv_connector->hpd);
kfree(nv_connector->edid);
drm_connector_unregister(connector);
drm_connector_cleanup(connector);
if (nv_connector->aux.transfer)
drm_dp_cec_unregister_connector(&nv_connector->aux);
nvif_conn_dtor(&nv_connector->conn);
kfree(connector);
}
static struct nouveau_encoder *
nouveau_connector_ddc_detect(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
struct pci_dev *pdev = to_pci_dev(dev->dev);
struct nouveau_connector *conn = nouveau_connector(connector);
struct nouveau_encoder *nv_encoder = NULL, *found = NULL;
struct drm_encoder *encoder;
int ret;
bool switcheroo_ddc = false;
drm_connector_for_each_possible_encoder(connector, encoder) {
nv_encoder = nouveau_encoder(encoder);
if (nvif_object_constructed(&nv_encoder->outp.object)) {
enum nvif_outp_detect_status status;
if (nv_encoder->dcb->type == DCB_OUTPUT_DP) {
ret = nouveau_dp_detect(conn, nv_encoder);
if (ret == NOUVEAU_DP_MST)
return NULL;
if (ret != NOUVEAU_DP_SST)
continue;
return nv_encoder;
} else {
status = nvif_outp_detect(&nv_encoder->outp);
switch (status) {
case PRESENT:
return nv_encoder;
case NOT_PRESENT:
continue;
case UNKNOWN:
break;
default:
WARN_ON(1);
break;
}
}
}
if (!nv_encoder->i2c)
continue;
if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS) {
switcheroo_ddc = !!(vga_switcheroo_handler_flags() &
VGA_SWITCHEROO_CAN_SWITCH_DDC);
}
if (switcheroo_ddc)
vga_switcheroo_lock_ddc(pdev);
if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
found = nv_encoder;
if (switcheroo_ddc)
vga_switcheroo_unlock_ddc(pdev);
if (found)
break;
}
return found;
}
static struct nouveau_encoder *
nouveau_connector_of_detect(struct drm_connector *connector)
{
#ifdef __powerpc__
struct drm_device *dev = connector->dev;
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_encoder *nv_encoder;
struct pci_dev *pdev = to_pci_dev(dev->dev);
struct device_node *dn = pci_device_to_OF_node(pdev);
if (!dn ||
!((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
(nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
return NULL;
for_each_child_of_node_scoped(dn, cn) {
const char *name = of_get_property(cn, "name", NULL);
const void *edid = of_get_property(cn, "EDID", NULL);
int idx = name ? name[strlen(name) - 1] - 'A' : 0;
if (nv_encoder->dcb->i2c_index == idx && edid) {
nv_connector->edid =
kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
return nv_encoder;
}
}
#endif
return NULL;
}
static void
nouveau_connector_set_encoder(struct drm_connector *connector,
struct nouveau_encoder *nv_encoder)
{
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_drm *drm = nouveau_drm(connector->dev);
struct drm_device *dev = connector->dev;
struct pci_dev *pdev = to_pci_dev(dev->dev);
if (nv_connector->detected_encoder == nv_encoder)
return;
nv_connector->detected_encoder = nv_encoder;
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
if (nv_encoder->dcb->type == DCB_OUTPUT_DP)
connector->interlace_allowed =
nv_encoder->caps.dp_interlace;
else
connector->interlace_allowed =
drm->client.device.info.family < NV_DEVICE_INFO_V0_VOLTA;
connector->doublescan_allowed = true;
} else
if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
connector->doublescan_allowed = false;
connector->interlace_allowed = false;
} else {
connector->doublescan_allowed = true;
if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
(drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
(pdev->device & 0x0ff0) != 0x0100 &&
(pdev->device & 0x0ff0) != 0x0150))
/* HW is broken */
connector->interlace_allowed = false;
else
connector->interlace_allowed = true;
}
if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
drm_object_property_set_value(&connector->base,
dev->mode_config.dvi_i_subconnector_property,
nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
DRM_MODE_SUBCONNECTOR_DVID :
DRM_MODE_SUBCONNECTOR_DVIA);
}
}
static void
nouveau_connector_set_edid(struct nouveau_connector *nv_connector,
struct edid *edid)
{
if (nv_connector->edid != edid) {
struct edid *old_edid = nv_connector->edid;
drm_connector_update_edid_property(&nv_connector->base, edid);
kfree(old_edid);
nv_connector->edid = edid;
}
}
static enum drm_connector_status
nouveau_connector_detect(struct drm_connector *connector, bool force)
{
struct drm_device *dev = connector->dev;
struct nouveau_drm *drm = nouveau_drm(dev);
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_encoder *nv_encoder = NULL;
struct nouveau_encoder *nv_partner;
int type;
int ret;
enum drm_connector_status conn_status = connector_status_disconnected;
/* Outputs are only polled while runtime active, so resuming the
* device here is unnecessary (and would deadlock upon runtime suspend
* because it waits for polling to finish). We do however, want to
* prevent the autosuspend timer from elapsing during this operation
* if possible.
*/
if (drm_kms_helper_is_poll_worker()) {
pm_runtime_get_noresume(dev->dev);
} else {
ret = pm_runtime_get_sync(dev->dev);
if (ret < 0 && ret != -EACCES) {
pm_runtime_put_autosuspend(dev->dev);
nouveau_connector_set_edid(nv_connector, NULL);
return conn_status;
}
}
nv_encoder = nouveau_connector_ddc_detect(connector);
if (nv_encoder) {
struct edid *new_edid = NULL;
if (nv_encoder->i2c) {
if ((vga_switcheroo_handler_flags() & VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
nv_connector->type == DCB_CONNECTOR_LVDS)
new_edid = drm_get_edid_switcheroo(connector, nv_encoder->i2c);
else
new_edid = drm_get_edid(connector, nv_encoder->i2c);
} else {
ret = nvif_outp_edid_get(&nv_encoder->outp, (u8 **)&new_edid);
if (ret < 0)
return connector_status_disconnected;
}
nouveau_connector_set_edid(nv_connector, new_edid);
if (!nv_connector->edid) {
NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
connector->name);
goto detect_analog;
}
/* Override encoder type for DVI-I based on whether EDID
* says the display is digital or analog, both use the
* same i2c channel so the value returned from ddc_detect
* isn't necessarily correct.
*/
nv_partner = NULL;
if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
(nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
type = DCB_OUTPUT_TMDS;
else
type = DCB_OUTPUT_ANALOG;
nv_encoder = find_encoder(connector, type);
}
nouveau_connector_set_encoder(connector, nv_encoder);
conn_status = connector_status_connected;
if (nv_encoder->dcb->type == DCB_OUTPUT_DP)
drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid);
goto out;
} else {
nouveau_connector_set_edid(nv_connector, NULL);
}
nv_encoder = nouveau_connector_of_detect(connector);
if (nv_encoder) {
nouveau_connector_set_encoder(connector, nv_encoder);
conn_status = connector_status_connected;
goto out;
}
detect_analog:
nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
if (!nv_encoder && !nouveau_tv_disable)
nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
if (nv_encoder && force) {
struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
const struct drm_encoder_helper_funcs *helper =
encoder->helper_private;
if (helper->detect(encoder, connector) ==
connector_status_connected) {
nouveau_connector_set_encoder(connector, nv_encoder);
conn_status = connector_status_connected;
goto out;
}
}
out:
if (!nv_connector->edid)
drm_dp_cec_unset_edid(&nv_connector->aux);
pm_runtime_mark_last_busy(dev->dev);
pm_runtime_put_autosuspend(dev->dev);
return conn_status;
}
static enum drm_connector_status
nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
{
struct drm_device *dev = connector->dev;
struct nouveau_drm *drm = nouveau_drm(dev);
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_encoder *nv_encoder = NULL;
struct edid *edid = NULL;
enum drm_connector_status status = connector_status_disconnected;
nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
if (!nv_encoder)
goto out;
/* Try retrieving EDID via DDC */
if (!drm->vbios.fp_no_ddc) {
status = nouveau_connector_detect(connector, force);
if (status == connector_status_connected) {
edid = nv_connector->edid;
goto out;
}
}
/* On some laptops (Sony, i'm looking at you) there appears to
* be no direct way of accessing the panel's EDID. The only
* option available to us appears to be to ask ACPI for help..
*
* It's important this check's before trying straps, one of the
* said manufacturer's laptops are configured in such a way
* the nouveau decides an entry in the VBIOS FP mode table is
* valid - it's not (rh#613284)
*/
if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
edid = nouveau_acpi_edid(dev, connector);
if (edid) {
status = connector_status_connected;
goto out;
}
}
/* If no EDID found above, and the VBIOS indicates a hardcoded
* modeline is avalilable for the panel, set it as the panel's
* native mode and exit.
*/
if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
status = connector_status_connected;
goto out;
}
/* Still nothing, some VBIOS images have a hardcoded EDID block
* stored for the panel stored in them.
*/
if (!drm->vbios.fp_no_ddc) {
edid = (struct edid *)nouveau_bios_embedded_edid(dev);
if (edid) {
edid = kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
if (edid)
status = connector_status_connected;
}
}
out:
#if defined(CONFIG_ACPI_BUTTON) || \
(defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
if (status == connector_status_connected &&
!nouveau_ignorelid && !acpi_lid_open())
status = connector_status_unknown;
#endif
nouveau_connector_set_edid(nv_connector, edid);
if (nv_encoder)
nouveau_connector_set_encoder(connector, nv_encoder);
return status;
}
static void
nouveau_connector_force(struct drm_connector *connector)
{
struct nouveau_drm *drm = nouveau_drm(connector->dev);
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_encoder *nv_encoder;
int type;
if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
if (connector->force == DRM_FORCE_ON_DIGITAL)
type = DCB_OUTPUT_TMDS;
else
type = DCB_OUTPUT_ANALOG;
} else
type = DCB_OUTPUT_ANY;
nv_encoder = find_encoder(connector, type);
if (!nv_encoder) {
NV_ERROR(drm, "can't find encoder to force %s on!\n",
connector->name);
return;
}
nouveau_connector_set_encoder(connector, nv_encoder);
}
static int
nouveau_connector_set_property(struct drm_connector *connector,
struct drm_property *property, uint64_t value)
{
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
struct nouveau_conn_atom *asyc = &nv_connector->properties_state;
struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
int ret;
ret = connector->funcs->atomic_set_property(&nv_connector->base,
&asyc->state,
property, value);
if (ret) {
if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
return get_encoder_i2c_funcs(encoder)->set_property(encoder,
connector,
property,
value);
return ret;
}
nv_connector->scaling_mode = asyc->scaler.mode;
nv_connector->dithering_mode = asyc->dither.mode;
if (connector->encoder && connector->encoder->crtc) {
ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
&connector->encoder->crtc->mode,
connector->encoder->crtc->x,
connector->encoder->crtc->y,
NULL);
if (!ret)
return -EINVAL;
}
return 0;
}
struct moderec {
int hdisplay;
int vdisplay;
};
static struct moderec scaler_modes[] = {
{ 1920, 1200 },
{ 1920, 1080 },
{ 1680, 1050 },
{ 1600, 1200 },
{ 1400, 1050 },
{ 1280, 1024 },
{ 1280, 960 },
{ 1152, 864 },
{ 1024, 768 },
{ 800, 600 },
{ 720, 400 },
{ 640, 480 },
{ 640, 400 },
{ 640, 350 },
{}
};
static int
nouveau_connector_scaler_modes_add(struct drm_connector *connector)
{
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct drm_display_mode *native = nv_connector->native_mode, *m;
struct drm_device *dev = connector->dev;
struct moderec *mode = &scaler_modes[0];
int modes = 0;
if (!native)
return 0;
while (mode->hdisplay) {
if (mode->hdisplay <= native->hdisplay &&
mode->vdisplay <= native->vdisplay &&
(mode->hdisplay != native->hdisplay ||
mode->vdisplay != native->vdisplay)) {
m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
drm_mode_vrefresh(native), false,
false, false);
if (!m)
continue;
drm_mode_probed_add(connector, m);
modes++;
}
mode++;
}
return modes;
}
static void
nouveau_connector_detect_depth(struct drm_connector *connector)
{
struct nouveau_drm *drm = nouveau_drm(connector->dev);
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
struct nvbios *bios = &drm->vbios;
struct drm_display_mode *mode = nv_connector->native_mode;
bool duallink;
/* if the edid is feeling nice enough to provide this info, use it */
if (nv_connector->edid && connector->display_info.bpc)
return;
/* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
if (nv_connector->type == DCB_CONNECTOR_eDP) {
connector->display_info.bpc = 6;
return;
}
/* we're out of options unless we're LVDS, default to 8bpc */
if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
connector->display_info.bpc = 8;
return;
}
connector->display_info.bpc = 6;
/* LVDS: panel straps */
if (bios->fp_no_ddc) {
if (bios->fp.if_is_24bit)
connector->display_info.bpc = 8;
return;
}
/* LVDS: DDC panel, need to first determine the number of links to
* know which if_is_24bit flag to check...
*/
if (nv_connector->edid &&
nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
duallink = ((u8 *)nv_connector->edid)[121] == 2;
else
duallink = mode->clock >= bios->fp.duallink_transition_clk;
if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
( duallink && (bios->fp.strapless_is_24bit & 2)))
connector->display_info.bpc = 8;
}
static int
nouveau_connector_late_register(struct drm_connector *connector)
{
int ret;
ret = nouveau_backlight_init(connector);
if (ret)
return ret;
if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
ret = drm_dp_aux_register(&nouveau_connector(connector)->aux);
if (ret)
goto backlight_fini;
}
return 0;
backlight_fini:
nouveau_backlight_fini(connector);
return ret;
}
static void
nouveau_connector_early_unregister(struct drm_connector *connector)
{
if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)
drm_dp_aux_unregister(&nouveau_connector(connector)->aux);
nouveau_backlight_fini(connector);
}
static int
nouveau_connector_get_modes(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
struct nouveau_drm *drm = nouveau_drm(dev);
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
int ret = 0;
/* destroy the native mode, the attached monitor could have changed.
*/
if (nv_connector->native_mode) {
drm_mode_destroy(dev, nv_connector->native_mode);
nv_connector->native_mode = NULL;
}
if (nv_connector->edid)
ret = drm_add_edid_modes(connector, nv_connector->edid);
else
if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
(nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
struct drm_display_mode mode;
nouveau_bios_fp_mode(dev, &mode);
nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
}
/* Determine display colour depth for everything except LVDS now,
* DP requires this before mode_valid() is called.
*/
if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
nouveau_connector_detect_depth(connector);
/* Find the native mode if this is a digital panel, if we didn't
* find any modes through DDC previously add the native mode to
* the list of modes.
*/
if (!nv_connector->native_mode)
nv_connector->native_mode = nouveau_conn_native_mode(connector);
if (ret == 0 && nv_connector->native_mode) {
struct drm_display_mode *mode;
mode = drm_mode_duplicate(dev, nv_connector->native_mode);
if (!mode)
return 0;
drm_mode_probed_add(connector, mode);
ret = 1;
}
/* Determine LVDS colour depth, must happen after determining
* "native" mode as some VBIOS tables require us to use the
* pixel clock as part of the lookup...
*/
if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS && nv_connector->native_mode)
nouveau_connector_detect_depth(connector);
if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
ret = get_encoder_i2c_funcs(encoder)->get_modes(encoder, connector);
if (nv_connector->type == DCB_CONNECTOR_LVDS ||
nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
nv_connector->type == DCB_CONNECTOR_eDP)
ret += nouveau_connector_scaler_modes_add(connector);
return ret;
}
static unsigned
get_tmds_link_bandwidth(struct drm_connector *connector)
{
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
struct nouveau_drm *drm = nouveau_drm(connector->dev);
struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
struct drm_display_info *info = NULL;
unsigned duallink_scale =
nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1;
if (nv_connector->base.display_info.is_hdmi) {
info = &nv_connector->base.display_info;
duallink_scale = 1;
}
if (info) {
if (nouveau_hdmimhz > 0)
return nouveau_hdmimhz * 1000;
/* Note: these limits are conservative, some Fermi's
* can do 297 MHz. Unclear how this can be determined.
*/
if (drm->client.device.info.chipset >= 0x120) {
const int max_tmds_clock =
info->hdmi.scdc.scrambling.supported ?
594000 : 340000;
return info->max_tmds_clock ?
min(info->max_tmds_clock, max_tmds_clock) :
max_tmds_clock;
}
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
return 297000;
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
return 225000;
}
if (dcb->location != DCB_LOC_ON_CHIP ||
drm->client.device.info.chipset >= 0x46)
return 165000 * duallink_scale;
else if (drm->client.device.info.chipset >= 0x40)
return 155000 * duallink_scale;
else if (drm->client.device.info.chipset >= 0x18)
return 135000 * duallink_scale;
else
return 112000 * duallink_scale;
}
static enum drm_mode_status
nouveau_connector_mode_valid(struct drm_connector *connector,
const struct drm_display_mode *mode)
{
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
unsigned int min_clock = 25000, max_clock = min_clock, clock = mode->clock;
switch (nv_encoder->dcb->type) {
case DCB_OUTPUT_LVDS:
if (nv_connector->native_mode &&
(mode->hdisplay > nv_connector->native_mode->hdisplay ||
mode->vdisplay > nv_connector->native_mode->vdisplay))
return MODE_PANEL;
min_clock = 0;
max_clock = 400000;
break;
case DCB_OUTPUT_TMDS:
max_clock = get_tmds_link_bandwidth(connector);
break;
case DCB_OUTPUT_ANALOG:
max_clock = nv_encoder->dcb->crtconf.maxfreq;
if (!max_clock)
max_clock = 350000;
break;
case DCB_OUTPUT_TV:
return get_encoder_i2c_funcs(encoder)->mode_valid(encoder, mode);
case DCB_OUTPUT_DP:
return nv50_dp_mode_valid(nv_encoder, mode, NULL);
default:
BUG();
return MODE_BAD;
}
if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
clock *= 2;
if (clock < min_clock)
return MODE_CLOCK_LOW;
if (clock > max_clock)
return MODE_CLOCK_HIGH;
return MODE_OK;
}
static struct drm_encoder *
nouveau_connector_best_encoder(struct drm_connector *connector)
{
struct nouveau_connector *nv_connector = nouveau_connector(connector);
if (nv_connector->detected_encoder)
return to_drm_encoder(nv_connector->detected_encoder);
return NULL;
}
static int
nouveau_connector_atomic_check(struct drm_connector *connector, struct drm_atomic_state *state)
{
struct nouveau_connector *nv_conn = nouveau_connector(connector);
struct drm_connector_state *conn_state =
drm_atomic_get_new_connector_state(state, connector);
if (!nv_conn->dp_encoder || !nv_conn->dp_encoder->dp.mstm)
return 0;
return drm_dp_mst_root_conn_atomic_check(conn_state, &nv_conn->dp_encoder->dp.mstm->mgr);
}
static const struct drm_connector_helper_funcs
nouveau_connector_helper_funcs = {
.get_modes = nouveau_connector_get_modes,
.mode_valid = nouveau_connector_mode_valid,
.best_encoder = nouveau_connector_best_encoder,
.atomic_check = nouveau_connector_atomic_check,
};
static const struct drm_connector_funcs
nouveau_connector_funcs = {
.dpms = drm_helper_connector_dpms,
.reset = nouveau_conn_reset,
.detect = nouveau_connector_detect,
.force = nouveau_connector_force,
.fill_modes = drm_helper_probe_single_connector_modes,
.set_property = nouveau_connector_set_property,
.destroy = nouveau_connector_destroy,
.atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
.atomic_destroy_state = nouveau_conn_atomic_destroy_state,
.atomic_set_property = nouveau_conn_atomic_set_property,
.atomic_get_property = nouveau_conn_atomic_get_property,
.late_register = nouveau_connector_late_register,
.early_unregister = nouveau_connector_early_unregister,
};
static const struct drm_connector_funcs
nouveau_connector_funcs_lvds = {
.dpms = drm_helper_connector_dpms,
.reset = nouveau_conn_reset,
.detect = nouveau_connector_detect_lvds,
.force = nouveau_connector_force,
.fill_modes = drm_helper_probe_single_connector_modes,
.set_property = nouveau_connector_set_property,
.destroy = nouveau_connector_destroy,
.atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
.atomic_destroy_state = nouveau_conn_atomic_destroy_state,
.atomic_set_property = nouveau_conn_atomic_set_property,
.atomic_get_property = nouveau_conn_atomic_get_property,
.late_register = nouveau_connector_late_register,
.early_unregister = nouveau_connector_early_unregister,
};
void
nouveau_connector_hpd(struct nouveau_connector *nv_connector, u64 bits)
{
struct nouveau_drm *drm = nouveau_drm(nv_connector->base.dev);
u32 mask = drm_connector_mask(&nv_connector->base);
unsigned long flags;
spin_lock_irqsave(&drm->hpd_lock, flags);
if (!(drm->hpd_pending & mask)) {
nv_connector->hpd_pending |= bits;
drm->hpd_pending |= mask;
schedule_work(&drm->hpd_work);
}
spin_unlock_irqrestore(&drm->hpd_lock, flags);
}
static int
nouveau_connector_irq(struct nvif_event *event, void *repv, u32 repc)
{
struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), irq);
schedule_work(&nv_connector->irq_work);
return NVIF_EVENT_KEEP;
}
static int
nouveau_connector_hotplug(struct nvif_event *event, void *repv, u32 repc)
{
struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), hpd);
struct nvif_conn_event_v0 *rep = repv;
nouveau_connector_hpd(nv_connector, rep->types);
return NVIF_EVENT_KEEP;
}
static ssize_t
nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
{
struct nouveau_connector *nv_connector =
container_of(obj, typeof(*nv_connector), aux);
struct nouveau_encoder *nv_encoder;
u8 size = msg->size;
int ret;
nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
if (!nv_encoder)
return -ENODEV;
if (WARN_ON(msg->size > 16))
return -E2BIG;
ret = nvif_outp_dp_aux_xfer(&nv_encoder->outp,
msg->request, &size, msg->address, msg->buffer);
if (ret >= 0) {
msg->reply = ret;
return size;
}
return ret;
}
static int
drm_conntype_from_dcb(enum dcb_connector_type dcb)
{
switch (dcb) {
case DCB_CONNECTOR_VGA : return DRM_MODE_CONNECTOR_VGA;
case DCB_CONNECTOR_TV_0 :
case DCB_CONNECTOR_TV_1 :
case DCB_CONNECTOR_TV_3 : return DRM_MODE_CONNECTOR_TV;
case DCB_CONNECTOR_DMS59_0 :
case DCB_CONNECTOR_DMS59_1 :
case DCB_CONNECTOR_DVI_I : return DRM_MODE_CONNECTOR_DVII;
case DCB_CONNECTOR_DVI_D : return DRM_MODE_CONNECTOR_DVID;
case DCB_CONNECTOR_LVDS :
case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
case DCB_CONNECTOR_DMS59_DP0:
case DCB_CONNECTOR_DMS59_DP1:
case DCB_CONNECTOR_DP :
case DCB_CONNECTOR_mDP :
case DCB_CONNECTOR_USB_C : return DRM_MODE_CONNECTOR_DisplayPort;
case DCB_CONNECTOR_eDP : return DRM_MODE_CONNECTOR_eDP;
case DCB_CONNECTOR_HDMI_0 :
case DCB_CONNECTOR_HDMI_1 :
case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA;
case DCB_CONNECTOR_WFD : return DRM_MODE_CONNECTOR_VIRTUAL;
default:
break;
}
return DRM_MODE_CONNECTOR_Unknown;
}
struct drm_connector *
nouveau_connector_create(struct drm_device *dev, int index)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nouveau_display *disp = nouveau_display(dev);
struct nouveau_connector *nv_connector = NULL;
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
int type, ret = 0;
bool dummy;
drm_connector_list_iter_begin(dev, &conn_iter);
nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
nv_connector = nouveau_connector(connector);
if (nv_connector->index == index) {
drm_connector_list_iter_end(&conn_iter);
return connector;
}
}
drm_connector_list_iter_end(&conn_iter);
nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
if (!nv_connector)
return ERR_PTR(-ENOMEM);
connector = &nv_connector->base;
nv_connector->index = index;
INIT_WORK(&nv_connector->irq_work, nouveau_dp_irq);
if (disp->disp.conn_mask & BIT(nv_connector->index)) {
ret = nvif_conn_ctor(&disp->disp, nv_connector->base.name, nv_connector->index,
&nv_connector->conn);
if (ret) {
kfree(nv_connector);
return ERR_PTR(ret);
}
switch (nv_connector->conn.info.type) {
case NVIF_CONN_VGA : type = DCB_CONNECTOR_VGA; break;
case NVIF_CONN_DVI_I : type = DCB_CONNECTOR_DVI_I; break;
case NVIF_CONN_DVI_D : type = DCB_CONNECTOR_DVI_D; break;
case NVIF_CONN_LVDS : type = DCB_CONNECTOR_LVDS; break;
case NVIF_CONN_LVDS_SPWG: type = DCB_CONNECTOR_LVDS_SPWG; break;
case NVIF_CONN_DP : type = DCB_CONNECTOR_DP; break;
case NVIF_CONN_EDP : type = DCB_CONNECTOR_eDP; break;
case NVIF_CONN_HDMI : type = DCB_CONNECTOR_HDMI_0; break;
default:
WARN_ON(1);
return NULL;
}
nv_connector->type = type;
} else {
u8 *dcb = olddcb_conn(dev, nv_connector->index);
if (dcb)
nv_connector->type = dcb[0];
else
nv_connector->type = DCB_CONNECTOR_NONE;
/* attempt to parse vbios connector type and hotplug gpio */
if (nv_connector->type != DCB_CONNECTOR_NONE) {
if (drm_conntype_from_dcb(nv_connector->type) ==
DRM_MODE_CONNECTOR_Unknown) {
NV_WARN(drm, "unknown connector type %02x\n",
nv_connector->type);
nv_connector->type = DCB_CONNECTOR_NONE;
}
}
/* no vbios data, or an unknown dcb connector type - attempt to
* figure out something suitable ourselves
*/
if (nv_connector->type == DCB_CONNECTOR_NONE &&
!WARN_ON(drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)) {
struct dcb_table *dcbt = &drm->vbios.dcb;
u32 encoders = 0;
int i;
for (i = 0; i < dcbt->entries; i++) {
if (dcbt->entry[i].connector == nv_connector->index)
encoders |= (1 << dcbt->entry[i].type);
}
if (encoders & (1 << DCB_OUTPUT_TMDS)) {
if (encoders & (1 << DCB_OUTPUT_ANALOG))
nv_connector->type = DCB_CONNECTOR_DVI_I;
else
nv_connector->type = DCB_CONNECTOR_DVI_D;
} else
if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
nv_connector->type = DCB_CONNECTOR_VGA;
} else
if (encoders & (1 << DCB_OUTPUT_LVDS)) {
nv_connector->type = DCB_CONNECTOR_LVDS;
} else
if (encoders & (1 << DCB_OUTPUT_TV)) {
nv_connector->type = DCB_CONNECTOR_TV_0;
}
}
}
type = drm_conntype_from_dcb(nv_connector->type);
if (type == DRM_MODE_CONNECTOR_LVDS)
drm_connector_init(dev, connector, &nouveau_connector_funcs_lvds, type);
else
drm_connector_init(dev, connector, &nouveau_connector_funcs, type);
switch (type) {
case DRM_MODE_CONNECTOR_LVDS:
ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
if (ret) {
NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
kfree(nv_connector);
return ERR_PTR(ret);
}
break;
case DRM_MODE_CONNECTOR_DisplayPort:
case DRM_MODE_CONNECTOR_eDP:
nv_connector->aux.dev = connector->kdev;
nv_connector->aux.drm_dev = dev;
nv_connector->aux.transfer = nouveau_connector_aux_xfer;
nv_connector->aux.name = connector->name;
if (disp->disp.object.oclass >= GB202_DISP)
nv_connector->aux.no_zero_sized = true;
drm_dp_aux_init(&nv_connector->aux);
break;
default:
break;
}
/* HDMI 3D support */
if ((disp->disp.object.oclass >= G82_DISP)
&& ((type == DRM_MODE_CONNECTOR_DisplayPort)
|| (type == DRM_MODE_CONNECTOR_eDP)
|| (type == DRM_MODE_CONNECTOR_HDMIA)))
connector->stereo_allowed = true;
/* defaults, will get overridden in detect() */
connector->interlace_allowed = false;
connector->doublescan_allowed = false;
drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
connector->polled = DRM_CONNECTOR_POLL_CONNECT;
if (nvif_object_constructed(&nv_connector->conn.object)) {
ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsHotplug",
nouveau_connector_hotplug,
NVIF_CONN_EVENT_V0_PLUG | NVIF_CONN_EVENT_V0_UNPLUG,
&nv_connector->hpd);
if (ret == 0)
connector->polled = DRM_CONNECTOR_POLL_HPD;
if (nv_connector->aux.transfer) {
ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsDpIrq",
nouveau_connector_irq, NVIF_CONN_EVENT_V0_IRQ,
&nv_connector->irq);
if (ret) {
nvif_event_dtor(&nv_connector->hpd);
nvif_conn_dtor(&nv_connector->conn);
goto drm_conn_err;
}
}
}
connector->funcs->reset(connector);
nouveau_conn_attach_properties(connector);
/* Default scaling mode */
switch (nv_connector->type) {
case DCB_CONNECTOR_LVDS:
case DCB_CONNECTOR_LVDS_SPWG:
case DCB_CONNECTOR_eDP:
/* see note in nouveau_connector_set_property() */
if (disp->disp.object.oclass < NV50_DISP) {
nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
break;
}
nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
break;
default:
nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
break;
}
/* dithering properties */
switch (nv_connector->type) {
case DCB_CONNECTOR_TV_0:
case DCB_CONNECTOR_TV_1:
case DCB_CONNECTOR_TV_3:
case DCB_CONNECTOR_VGA:
break;
default:
nv_connector->dithering_mode = DITHERING_MODE_AUTO;
break;
}
switch (type) {
case DRM_MODE_CONNECTOR_DisplayPort:
nv_connector->dp_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
fallthrough;
case DRM_MODE_CONNECTOR_eDP:
drm_dp_cec_register_connector(&nv_connector->aux, connector);
break;
}
drm_connector_register(connector);
return connector;
drm_conn_err:
drm_connector_cleanup(connector);
kfree(nv_connector);
return ERR_PTR(ret);
}
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